Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus interface architecture
Reexamination Certificate
2007-01-02
2007-01-02
Rinehart, Mark H. (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus interface architecture
C710S301000, C710S316000, C710S315000, C711S115000, C235S492000
Reexamination Certificate
active
10733844
ABSTRACT:
An electronic device having a MultiMediaCard host connected to a MultiMediaCard card via a bus system having a plurality of signal lines and a plurality of data lines, wherein the host is operable in a number of data modes. At least in one of the data modes the number of data lines used to convey data between the host and card is smaller than the number of data lines available on the bus system, leaving some unused data lines. An embedded module in the card is used to generate a clock signal, a command signal and further data to be conveyed between the host and the card on some or all of the unused data lines. When the electronic device is operable in an SPI mode, the CS line can be used for sending a command signal from the card to the host.
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Phan Raymond N
Rinehart Mark H.
Ware Fressola Van Der Sluys & Adolphson LLP
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